Imaging lens assembly module, camera module and electronic device

ABSTRACT

An imaging lens assembly module has an optical axis, and includes an optical element set, a light blocking element assembling surface, and a light absorbing layer. The optical element set includes an optical lens element and a light blocking sheet. The optical lens element is a plastic lens element, and includes an optical effective portion and an outer peripheral portion. The light blocking sheet is disposed on the outer peripheral portion, and spaced apart from the outer peripheral portion. The light blocking sheet includes an object-side surface, an image-side surface and an inner opening surface. The inner opening surface surrounds a through hole of the light blocking sheet. The light blocking sheet is disposed on the light blocking element assembling surface. The light absorbing layer is disposed on the image-side surface and for fixing the light blocking sheet on the light blocking element assembling surface.

RELATED APPLICATIONS

This application claims priority to Taiwan Application Serial Number108132854, filed Sep. 11, 2019, which is herein incorporated byreference.

BACKGROUND Technical Field

The present disclosure relates to an imaging lens assembly module and acamera module. More particularly, the present disclosure relates to animaging lens assembly module and a camera module applicable to aportable electronic device.

Description of Related Art

In recent years, portable electronic devices have developed rapidly. Forexample, intelligent electronic devices and tablets have been filled inthe lives of modern people, and camera modules and imaging lens assemblymodules thereof mounted on portable electronic devices have alsoprospered. However, as technology advances, the quality requirements ofimaging lens assembly modules are becoming higher and higher. Therefore,an imaging lens assembly module with an ability of reducing a reflectionof a stray light and promoting a mechanical strength needs to bedeveloped.

SUMMARY

According to one aspect of the present disclosure, an imaging lensassembly module has an optical axis, and includes an optical elementset, a light blocking element assembling surface, and a light absorbinglayer. The optical element set includes at least one optical lenselement and at least one light blocking sheet. The optical lens elementis a plastic lens element, an object side of the optical lens element iswithout additional one or more optical lens elements disposed thereon,and the optical lens element, in order from the optical axis to aperipheral region thereof, includes an optical effective portion and anouter peripheral portion. The outer peripheral portion surrounds theoptical effective portion. The light blocking sheet is disposed on anobject side of the outer peripheral portion of the optical lens element,and spaced apart from the outer peripheral portion of the optical lenselement. The light blocking sheet includes an object-side surface, animage-side surface and an inner opening surface. The inner openingsurface surrounds a through hole of the light blocking sheet, and theinner opening surface is connected to the object-side surface and theimage-side surface. The light blocking element assembling surface isdisposed on an object side of the light blocking sheet, and the lightblocking element assembling surface faces toward an image side of theimaging lens assembly module and is circular annular and for the lightblocking sheet mounted thereon. The light absorbing layer is disposed onthe image-side surface of the light blocking sheet and for fixing thelight blocking sheet on the light blocking element assembling surface. Avoid is maintained between the light blocking sheet and the outerperipheral portion of the optical lens element.

According to one aspect of the present disclosure, a camera moduleincludes the imaging lens assembly module of the aforementioned aspectand an image sensor module. The imaging lens assembly module is disposedon the image sensor module, and the image sensor module includes animage sensor.

According to one aspect of the present disclosure, an electronic deviceincludes the camera module of the aforementioned aspect.

According to another aspect of the present disclosure, an imaging lensassembly module has an optical axis, and includes an optical elementset, a light blocking element assembling surface, and a light absorbinglayer. The optical element set includes at least one optical lenselement and at least one light blocking sheet. The optical lens elementis a plastic lens element, an object side of the optical lens element iswithout additional one or more optical lens elements disposed thereon,and the optical lens element, in order from the optical axis to aperipheral region thereof, includes an optical effective portion and anouter peripheral portion. The outer peripheral portion surrounds theoptical effective portion. The light blocking sheet is disposed on anobject side of the outer peripheral portion of the optical lens element,and spaced apart from the outer peripheral portion of the optical lenselement. The light blocking sheet includes an object-side surface, animage-side surface and an inner opening surface. The inner openingsurface surrounds a through hole of the light blocking sheet, and theinner opening surface is connected to the object-side surface and theimage-side surface. The light blocking element assembling surface isdisposed on an object side of the light blocking sheet, and the lightblocking element assembling surface faces toward an image side of theimaging lens assembly module and is circular annular and for the lightblocking sheet mounted thereon. The light absorbing layer is disposed onthe image-side surface of the light blocking sheet and for fixing thelight blocking sheet on the light blocking element assembling surface.The light absorbing layer surrounds the through hole of the lightblocking sheet to form a concave-curved ring.

According to another aspect of the present disclosure, an imaging lensassembly module has an optical axis, and includes an optical elementset, a light blocking element assembling surface, and a light absorbinglayer. The optical element set includes at least one optical lenselement and at least one light blocking sheet. The optical lens elementis a plastic lens element. One side of an object side and an image sideof the optical lens element is without additional one or more opticallens elements disposed thereon, and the optical lens element, in orderfrom the optical axis to a peripheral region thereof, includes anoptical effective portion and an outer peripheral portion. The outerperipheral portion surrounds the optical effective portion. The lightblocking sheet is disposed on one side of an object side and an imageside of the outer peripheral portion of the optical lens element whichis without additional one or more optical lens elements disposedthereon, and spaced apart from the outer peripheral portion of theoptical lens element. The light blocking sheet includes an object-sidesurface, an image-side surface and an inner opening surface. The inneropening surface surrounds a through hole of the light blocking sheet,and the inner opening surface is connected to the object-side surfaceand the image-side surface. The light blocking element assemblingsurface is disposed on one side of an object side and an image side ofthe light blocking sheet which is without additional one or more opticallens elements disposed thereon, and the light blocking elementassembling surface faces toward the optical lens element and is circularannular and for the light blocking sheet mounted thereon. The lightabsorbing layer is disposed on one side of the object side and the imageside of the light blocking sheet which has the optical lens element andfor fixing the light blocking sheet on the light blocking elementassembling surface. The light absorbing layer surrounds the through holeof the light blocking sheet to form a concave-curved ring. When adiameter of the through hole of the light blocking sheet is visa, and anouter diameter of the light blocking sheet is ψsd, the followingcondition is satisfied: 0.08 mm<(ψsd−ψsa)/2<0.5 mm.

BRIEF DESCRIPTION OF THE DRAWINGS

The present disclosure can be more fully understood by reading thefollowing detailed description of the embodiment, with reference made tothe accompanying drawings as follows:

FIG. 1A is a schematic view of a camera module according to the 1stembodiment of the present disclosure.

FIG. 1B is a partial exploded view of an imaging lens assembly moduleaccording to the 1st embodiment in FIG. 1A.

FIG. 10 is a partial enlarged view of the imaging lens assembly moduleaccording to the 1st embodiment in FIG. 1A.

FIG. 1D is a schematic view of a partial optical element set, a lensbarrel and a tip-end minimal opening structure of the imaging lensassembly module according to the 1st embodiment in FIG. 1A.

FIG. 1E is a cross-sectional view of the tip-end minimal openingstructure of the imaging lens assembly module according to the 1stembodiment in FIG. 1A.

FIG. 1F is another partial exploded view of the imaging lens assemblymodule according to the 1st embodiment in FIG. 1A.

FIG. 2A is a schematic view of a camera module according to the 2ndembodiment of the present disclosure.

FIG. 2B is a partial exploded view of an imaging lens assembly moduleaccording to the 2nd embodiment in FIG. 2A.

FIG. 2C is a partial enlarged view of the imaging lens assembly moduleaccording to the 2nd embodiment in FIG. 2A.

FIG. 2D is a schematic view of a partial optical element set, a lensbarrel and a tip-end minimal opening structure of the imaging lensassembly module according to the 2nd embodiment in FIG. 2A.

FIG. 2E is a cross-sectional view of the tip-end minimal openingstructure of the imaging lens assembly module according to the 2ndembodiment in FIG. 2A.

FIG. 3A is a schematic view of a camera module according to the 3rdembodiment of the present disclosure.

FIG. 3B is a partial exploded view of an imaging lens assembly moduleaccording to the 3rd embodiment in FIG. 3A.

FIG. 3C is a partial exploded view of an imaging lens assembly moduleaccording to the 3rd embodiment in FIG. 3A.

FIG. 3D is a schematic view of a partial optical element set, a lensbarrel and a tip-end minimal opening structure of the imaging lensassembly module according to the 3rd embodiment in FIG. 3A.

FIG. 3E is a cross-sectional view of the tip-end minimal openingstructure of the imaging lens assembly module according to the 3rdembodiment in FIG. 3A.

FIG. 3F is another partial exploded view of the imaging lens assemblymodule according to the 3rd embodiment in FIG. 3A.

FIG. 4A is a schematic view of a camera module according to the 4thembodiment of the present disclosure.

FIG. 4B is a schematic view of a partial optical element set, a lensbarrel and a tip-end minimal opening structure of an imaging lensassembly module according to the 4th embodiment in FIG. 4A.

FIG. 5A is a schematic view of an electronic device according to the 5thembodiment of the present disclosure.

FIG. 5B is another schematic view of the electronic device according tothe 5th embodiment of the present disclosure.

FIG. 5C is a block diagram of the electronic device of the 5thembodiment.

FIG. 6 is a schematic view of an electronic device according to the 6thembodiment of the present disclosure.

FIG. 7 is a schematic view of an electronic device according to the 7thembodiment of the present disclosure.

DETAILED DESCRIPTION

The present disclosure provides an imaging lens assembly module. Theimaging lens assembly module has an optical axis, and includes anoptical element set, a light blocking element assembling surface and alight absorbing layer. The optical element set includes at least oneoptical lens element and at least one light blocking sheet. The opticallens element is a plastic lens element, and an object side of theoptical lens element is without additional one or more optical lenselement disposed thereon. The optical lens element, in order from theoptical axis to a peripheral region of the optical lens element,includes an optical effective portion and an outer peripheral portion,wherein the outer peripheral portion surrounds the optical effectiveportion. The light blocking sheet is disposed on an object side of theouter peripheral portion of the optical lens element, or disposed on oneside of the object side and an image side of the outer peripheralportion of the optical lens element which is without additional one ormore optical lens element disposed thereon. The light blocking sheet isspaced apart from the outer peripheral portion of the optical lenselement, and includes an object-side surface, an image-side surface andan inner opening surface, wherein the inner opening surface surrounds athrough hole of the light blocking sheet, and the inner opening surfaceis connected to the object-side surface and the image-side surface. Thelight blocking element assembling surface is disposed on an object sideof the light blocking sheet, and faces toward an image side of theimaging lens assembly module. Or, the light blocking element assemblingsurface is disposed on one side of an object side and an image side ofthe light blocking sheet which is without additional one or more opticallens elements disposed thereon, and the light blocking elementassembling surface faces toward the optical lens element. The lightblocking element assembling surface is circular annular for the lightblocking sheet mounted thereon. The light absorbing layer is disposed onthe image-side surface of the light blocking sheet, or disposed on oneside of the object side and the image side of the light blocking sheetwhich has the optical lens element. The light absorbing layer is forfixing the light blocking sheet on the light blocking element assemblingsurface. Therefore, the light absorbing layer can be for fixing thelight blocking sheet on the light blocking element assembling surface,and a stray light in the imaging lens assembly module can be absorbedvia the light absorbing layer to ensure the better light blockingperformance.

A void is maintained between the light blocking sheet and the outerperipheral portion of the optical lens element. Therefore, the preciselymanufactured light blocking sheet does not be compressed via the opticallens element. Furthermore, the misgiving which the light blocking sheetis destroyed during the assembling process can be reduced to ensure thebetter light blocking performance. Moreover, the light blocking sheetcan further be an aperture stop of the imaging lens assembly module topromote the optical quality of the aperture stop.

The light absorbing layer surrounds the through hole of the lightblocking sheet to form a concave-curved ring. Furthermore, an initialcondition of the light absorbing layer is a liquid, the light absorbinglayer is visible absorption, and the light absorbing layer can be madeof a quick-drying ink based on a plastic material including a blackepoxy resin, an oil-based coating including a resin, an epoxy resin oran acrylic or a coating of a photocurable colloid mixed with an ink.Moreover, the concave-curved ring is formed after an appearance of thelight absorbing layer solidifying, and the light absorbing layer isopaque. Therefore, the reflection condition of the stray light can bereduced, and the stability and the steady state of the light blockingsheet can be further increased, which are not affected by the externalsurroundings.

The imaging lens assembly module can further include a tip-end minimalopening structure circular symmetrical about the optical axis as acenter, and the tip-end minimal opening structure is disposed on anobject side of the light blocking element assembling surface, ordisposed on one side of the object side and the image side of theoptical lens element which is without additional one or more opticallens elements disposed thereon, wherein the tip-end minimal openingstructure includes a first tapered surface and a second tapered surface.The first tapered surface is tapered from an object side of the imaginglens assembly module to the image side of the imaging lens assemblymodule, the second tapered surface is tapered from the image side of theimaging lens assembly module to the object side of the imaging lensassembly module, and the first tapered surface and the second taperedsurface are intersected to form a tip-end minimal opening. In detail, astructure of the tip-end minimal opening structure and the lightblocking sheet are cooperated to each other. The light absorbing layerused as the aperture stop can be disposed on a suitable position,wherein a shape of the first tapered surface and a shape of the secondtapered surface are cooperated to a geometric shape of the lightblocking sheet, and a light trap for absorbing the stray light can beformed. The light absorbing layer can be smoothly accumulated in abottom of the light trap. Therefore, the steady state of the aperturestop can be promoted, and the possibility of the reflection of the straylight can be substantially reduced.

The light absorbing layer can be further disposed on the object-sidesurface of the light blocking sheet. Therefore, the light absorbinglayer can be accumulated in a bottom of the second tapered surface, thatis, a bottom of the light trap. Therefore, the possibility of thereflection of the stray light can be substantially reduced, and theefficiency of absorbing non-imaging light can be increased.

The light absorbing layer can be closer to the through hole of the lightblocking sheet than the light blocking element assembling surface to thethrough hole of the light blocking sheet. Therefore, the efficiency forfixing the aperture stop via the light absorbing layer can be increased.The light absorbing layer can be farther from the through hole of thelight blocking sheet than the light blocking element assembling surfacefrom the through hole of the light blocking sheet. Furthermore, when theimaging lens assembly module is observed from a direction parallel tothe optical axis to the image side, the light absorbing layer on theobject-side surface of the light absorbing layer is shielded via thetip-end minimal opening structure. Therefore, it is favorable for beinga glue-storage groove, and the glue-storage groove is for the lightabsorbing layer with a flow state accumulated as uneven thickness via ashielding condition. The tip-end minimal opening structure can beadjusted the surface characteristic thereof owing to be made of aplastic material, and the light absorbing layer with the flow state iswith capillary effect. Cooperating with a shielding configuration of thetip-end minimal opening structure, the light absorbing layer with theflow state is accumulated as uneven thickness. The disposition of theglue-storage groove is to accumulate a portion of the light absorbinglayer, most of the light absorbing layer can be stored in theglue-storage groove, and the excessive light absorbing layer can beavoided so as to a better adhesion between the light blocking sheet andthe light blocking element assembling surface. An accumulation of thelight absorbing layer is not occupied on the entire light blockingelement assembling surface, and a condition of the light blocking sheetexclusively drifted on the light blocking element assembling surface canbe reduced.

The outer peripheral portion of the optical lens element can furtherinclude an object-side receiving surface facing toward the object sideof the optical lens element to be circular annular, and the object-sidereceiving surface is for being assembled with a lens barrel of theimaging lens assembly module. The lens barrel includes a verticalreceiving surface contacted with the object-side receiving surface.Therefore, the object-side receiving surface of the optical lens elementdoes not need to be connected to the light blocking sheet as theaperture stop to disperse the assembling stress of the entire opticalelement set, and the excessive stress is avoided to apply on theaperture stop to reduce the possibility of deterioration of the qualityof the aperture stop.

The object-side receiving surface does not overlap with the lightblocking element assembling surface in a direction parallel to theoptical axis. Therefore, a range of applied force on a structure isstaggered to avoid the light blocking sheet being affected via theoptical element set during the assembling process.

The light blocking sheet does not overlap with the lens barrel in thedirection parallel to the optical axis and toward the image side of theimaging lens assembly module. Therefore, it is favorable for reducingthe complexity of the assembling process of the aperture stop, and theefficiency of manufacture can be promoted. Furthermore, an assemblingdirection of the aperture stop is consistent with an assemblingdirection of the optical element set to avoid increasing the cost ofmachinery, which is for turning the lens barrel during the assemblingprocess.

The concave-curved ring can be recessed to an outer diameter surface ofthe light blocking sheet. Therefore, it is favorable for increasing thestability and the steady state of the light blocking sheet, which arenot affected by the external surroundings. The light absorbing layerdisposed on the object-side surface of the light blocking sheet cansurround the through hole of the light blocking sheet, theconcave-curved ring is formed, and the light blocking sheet is recessedto the light blocking element assembling surface. Therefore, it isfavorable for increasing the efficiency for fixing the aperture stop viathe light absorbing layer.

When a diameter of the tip-end minimal opening is ψd, and a diameter ofthe through hole of the light blocking sheet is visa, the followingcondition can be satisfied: 0.85<ψd/ψsa<1.15. If a value of ψd/ψsa istoo high, the structure of an optical system is destroyed to affect aspecification. If the value of ψd/ψsa is too low, an efficiency of lightblocking is decreased. Hence, ψd/ψsa is remained in the proportion ofthe aforementioned range, and it is favorable for increasing theefficiency of blocking the stray light. Furthermore, the through hole ofthe light blocking sheet can be the aperture stop of the imaging lensassembly module, the through hole can be for controlling the amount ofincoming light of the imaging lens assembly module, and an openingdiameter of the through hole of the light blocking sheet can be anentrance pupil diameter of the imaging lens assembly module.

When the diameter of the through hole of the light blocking sheet isvisa, and an outer diameter of the light blocking sheet is ψsd, thefollowing condition can be satisfied: 0.08 mm<(ψsd−ψsa)/2<0.5 mm.Therefore, it is favorable for maintaining the light blocking sheet withsmaller dimension to be suitable for the imaging lens assembly modulewith partially compact, and an excessively unnecessary light blockingrange can be reduced.

When the diameter of the through hole of the light blocking sheet isvisa, and the outer diameter of the light blocking sheet is ψsd, thefollowing condition can be satisfied: 0.1<(ψsd−ψsa)/ψsa<0.4. Therefore,an opening proportion of the light blocking sheet is for determine anaperture range of the aperture stop to effectively control aspecification stability of the imaging lens assembly module.

Each of the aforementioned features of the imaging lens assembly modulecan be utilized in various combinations for achieving the correspondingeffects.

The present disclosure provides a camera module, which includes theaforementioned imaging lens assembly module and an image sensor module,wherein the imaging lens assembly module is disposed on the image sensormodule, and the image sensor module includes an image sensor.

The present disclosure provides an electronic device, which includes theaforementioned camera module. Therefore, it is favorable for promotingthe image quality.

According to the aforementioned embodiment, specific examples areprovided, and illustrated via figures.

1st Embodiment

FIG. 1A is a schematic view of a camera module 10 according to the 1stembodiment of the present disclosure. FIG. 1B is a partial exploded viewof an imaging lens assembly module according to the 1st embodiment inFIG. 1A. FIG. 10 is a partial enlarged view of the imaging lens assemblymodule according to the 1st embodiment in FIG. 1A. FIG. 1D is aschematic view of a partial optical element set, a lens barrel 150 and atip-end minimal opening structure 140 of the imaging lens assemblymodule according to the 1st embodiment in FIG. 1A. In FIGS. 1A to 1D,the camera module 10 includes the imaging lens assembly module (itsreference numeral is omitted) and an image sensor module (its referencenumeral is omitted). The imaging lens assembly module has an opticalaxis X, and includes the optical element set (its reference numeral isomitted), a light blocking element assembling surface 120, a lightabsorbing layer 130, the tip-end minimal opening structure 140, the lensbarrel 150 and an imaging surface 170. The optical element set isdisposed in the lens barrel 150. The tip-end minimal opening structure140 is located on an object side of the imaging lens assembly module.The lens barrel 150 is disposed on an image side of the tip-end minimalopening structure 140. The imaging surface 170 is located on an imageside of the lens barrel 150. The image sensor module includes an imagesensor 161, and the image sensor 161 is disposed on the imaging surface170.

The optical element set includes at least one optical lens element andat least one light blocking sheet, and the optical element set canfurther include a plurality of spacers and a retainer 114. In detail,according to the 1st embodiment, the optical element set, in order froman object side to an image side, includes a light blocking sheet 112 a,a first optical lens element 111 a, a second optical lens element 111 b,a light blocking sheet 112 b, a third optical lens element 111 c, aspacer 113 a, a fourth optical lens element 111 d, a spacer 113 b, afifth optical lens element 111 e and the retainer 114.

In detail, the first optical lens element 111 a and the second opticallens element 111 b are bonded together to form a cemented lens element.When one of the first optical lens element 111 a and the second opticallens element 111 b is made of a plastic material, a material of thecemented lens element is regarded as the plastic material. When thefirst optical lens element 111 a and the second optical lens element 111b are both made of a glass material, the material of the cemented lenselement is regarded as the glass material, but is not limited thereto.The first optical lens element 111 a and the second optical lens element111 b can be simultaneously fixed as long as one of the first opticallens element 111 a and the second optical lens element 111 b of thecemented lens element is assembled with the lens barrel 150.

In FIGS. 10 and 1D, the first optical lens element 111 a, in order fromthe optical axis X to a peripheral region of the first optical lenselement 111 a, includes an optical effective portion 1111 and an outerperipheral portion 1112, wherein the outer peripheral portion 1112surrounds the optical effective portion 1111. The light blocking sheet112 a is disposed on an object side of the outer peripheral portion 1112of the first optical lens element 111 a, and spaced apart from the outerperipheral portion 1112 of the first optical lens element 111 a, thatis, the light blocking sheet 112 a is not contacted with the outerperipheral portion 1112 of the first optical lens element 111 a. Thelight blocking sheet 112 a includes an object-side surface 1121, animage-side surface 1122 and an inner opening surface 1123, wherein theinner opening surface 1123 surrounds a through hole 1124 of the lightblocking sheet 112 a, and the inner opening surface 1123 is connected tothe object-side surface 1121 and the image-side surface 1122. Accordingto the 1st embodiment, it should be mentioned that each light blockingsheet (including the light blocking sheet 112 b) of the optical elementset includes the object-side surface, the image-side surface and theinner opening surface, and the disposition thereof is the same as thelight blocking sheet 112 a. Also, each optical lens element (includingthe second optical lens element 111 b, the third optical lens element111 c, the fourth optical lens element 111 d, the fifth optical lenselement 111 e) includes the optical effective portion and the outerperipheral portion, and the disposition thereof is the same as the firstoptical lens element 111 a. Hence, only the light blocking sheet 112 aand the first optical lens element 111 a are described herein.

Furthermore, according to the 1st embodiment, the through hole 1124 ofthe light blocking sheet 112 a can be an aperture stop of the imaginglens assembly module for controlling the amount of incoming light of theimaging lens assembly module, and an opening diameter of the throughhole 1124 of the light blocking sheet 112 a can be an entrance pupildiameter of the imaging lens assembly module. Or, a tip-end minimalopening 143 of the tip-end minimal opening structure 140 can be theaperture stop of the imaging lens assembly module for suitable for anoptical design of the front aperture stop. When the through hole 1124 ofthe light blocking sheet 112 a is the aperture stop of the imaging lensassembly module, a position of the aperture stop can be appropriatelyadjusted by the disposition of the tip-end minimal opening structure140.

In FIG. 10 , the light absorbing layer 130 is disposed on the image-sidesurface 1122 of the light blocking sheet 112 a, wherein the lightabsorbing layer 130 is for fixing the light blocking sheet 112 a on thelight blocking element assembling surface 120, and a void V ismaintained between the light blocking sheet 112 a and the outerperipheral portion 1112 of the first optical lens element 111 a. Indetail, the light absorbing layer 130 is disposed between the tip-endminimal opening structure 140 and the light blocking sheet 112 a,wherein the light blocking sheet 130 is for absorbing the stray light inthe imaging lens assembly module, and the light absorbing layer 130 canbe for fixing the light blocking sheet 112 a on the light blockingelement assembling surface 120, so that the precisely manufactured lightblocking sheet 112 a does not be compressed and destroyed via the firstoptical lens element 111 a. Therefore, it is favorable for decreasingthe misgiving which the light blocking sheet 112 a is destroyed duringthe assembling process to ensure the better light blocking performance.

The tip-end minimal opening structure 140 is circular symmetrical aboutthe optical axis X as a center, and the tip-end minimal openingstructure 140 is disposed on an object side of the light blockingelement assembling surface 120, wherein the tip-end minimal openingstructure 140 includes a first tapered surface 141 and a second taperedsurface 142, the first tapered surface 141 is tapered from an objectside of the imaging lens assembly module to the image side of theimaging lens assembly module, the second tapered surface 142 is taperedfrom the image side of the imaging lens assembly module to the objectside of the imaging lens assembly module, and the first tapered surface141 and the second tapered surface 142 are intersected to form a tip-endminimal opening 143. In detail, the structure of the tip-end minimalopening structure 140 and the light blocking sheet 112 a are cooperatedto each other, the light absorbing layer 130 for disposing the aperturestop can be disposed on a suitable position to promote the steady stateof the function of the aperture stop, and a shape of the first taperedsurface 141 and a shape of the second tapered surface 142 are cooperatedto a shape of the light blocking sheet 112 a. Therefore, a light trapfor absorbing the stray light is formed, and the light absorbing layer130 can be accumulated in the bottom of the light trap to substantiallyreduce the possibility of the reflection of the stray light.

FIG. 1E is a cross-sectional view of the tip-end minimal openingstructure 140 of the imaging lens assembly module according to the 1stembodiment in FIG. 1A. FIG. 1F is another partial exploded view of theimaging lens assembly module according to the 1st embodiment in FIG. 1A.In FIGS. 1E and 1F, the light blocking element assembling surface 120 isdisposed on an object side of the light blocking sheet 112 a, the lightblocking element assembling surface 120 faces toward the image side ofthe imaging lens assembly module. The light blocking element assemblingsurface 120 is circular annular, and for the light blocking sheet 112 amounted thereon.

The light absorbing layer 130 can be further disposed on the object-sidesurface 1121 of the light blocking sheet 112 a. Furthermore, the initialcondition of the light absorbing layer 130 is a liquid, so that thelight absorbing layer 130 has extensibility. Therefore, the lightabsorbing layer 130 extends and permeates to the object-side surface1121 of the light blocking sheet 112 a, and the light absorbing layer130 can be accumulated in the bottom of the second tapered surface 142to be a bottom of the light trap. Moreover, the concave-curved ring isformed after an appearance of the light absorbing layer 130 solidifying,and the light absorbing layer 130 is opaque. Therefore, the reflectioncondition of the stray light is substantially reduced, and theefficiency of absorbing the non-imaging light is increased.

The light absorbing layer 130 can be closer to the through hole 1124 ofthe light blocking sheet 112 a than the light blocking elementassembling surface 120 to the through hole 1124 of the light blockingsheet 112 a, or the light absorbing layer 130 can be farther from thethrough hole 1124 of the light blocking sheet 112 a than the lightblocking element assembling surface 120 from the through hole 1124 ofthe light blocking sheet 112 a. When the light absorbing layer 130 iscloser to the through hole 1124 of the light blocking sheet 112 a thanthe light blocking element assembling surface 120 to the through hole1124 of the light blocking sheet 112 a, the efficiency for fixing theaperture stop via the light absorbing layer 130 can be increased. Whenthe light absorbing layer 130 is farther from the through hole 1124 ofthe light blocking sheet 112 a than the light blocking elementassembling surface 120 from the through hole 1124 of the light blockingsheet 112 a, the imaging lens assembly module is observed from thedirection parallel to the optical axis X to the image side of theimaging lens assembly module, the light absorbing layer 130 disposed onthe object-side surface 1121 of the light blocking sheet 112 a isshielded via the tip-end minimal opening structure 140.

In FIG. 1D, there is without additional one or more optical lenselements on an object side of the cemented lens element, and the outerperipheral portion 1112 of the second optical lens element 111 b of thecemented lens element can further include an object-side receivingsurface 1112 a. The object-side receiving surface 1112 a faces towardthe object side of the second optical lens element 111 b to be circularannular, and the object-side receiving surface 1112 a is for beingassembled with the lens barrel 150 of the imaging lens assembly module.The lens barrel 150 can further include a vertical receiving surface151, and the vertical receiving surface 151 is contacted with theobject-side receiving surface 1112 a. In detail, the object-side surface1112 a of the second optical lens element 111 b does not need to beconnected to the through hole 1124 of the light blocking sheet 112 a asthe aperture stop. Therefore, it is favorable for dispersing theassembling stress of the entire optical element set, and the excessivestress is avoided to apply on the aperture stop to reduce thepossibility of deterioration of the quality of the aperture stop.

The object-side receiving surface 1112 a does not overlap with the lightblocking element assembling surface 120 in a direction parallel to theoptical axis X. Therefore, the range of applied force is staggered toavoid the light blocking sheet 112 a being affected via the opticalelement set during the assembling process. The light blocking sheet 112a does not overlap with the lens barrel 150 in the direction parallel tothe optical axis X and toward the image side of the imaging lensassembly module. Therefore, it is favorable for reducing the complexityof the assembling process of the aperture stop, and the efficiency ofmanufacture can be promoted. Furthermore, the assembling direction ofthe aperture stop is consistent with the assembling direction of theoptical element set to avoid increasing the cost of machinery, which isfor turning the lens barrel 150 during the assembling process.

In FIGS. 1A and 1D, according to the 1st embodiment, when a diameter ofthe tip-end minimal opening 143 is ψd, a diameter of the through hole1124 of the light blocking sheet 112 a is ψsa, and an outer diameter ofthe light blocking sheet 112 a is ψsd, the following condition of theTable 1 is satisfied.

TABLE 1 1st embodiment ψd (mm) 1.7 ψd/ψsa 1.03 ψsa (mm) 1.65 (ψsd-ψsa)/2(mm) 0.17 ψsd (mm) 1.98 (ψsd-ψsa)/ψsa 0.20

2nd Embodiment

FIG. 2A is a schematic view of a camera module 20 according to the 2ndembodiment of the present disclosure. FIG. 2B is a partial exploded viewof an imaging lens assembly module according to the 2nd embodiment inFIG. 2A. FIG. 2C is a partial enlarged view of the imaging lens assemblymodule according to the 2nd embodiment in FIG. 2A. FIG. 2D is aschematic view of a partial optical element set, a lens barrel 250 and atip-end minimal opening structure 240 of the imaging lens assemblymodule according to the 2nd embodiment in FIG. 2A. In FIGS. 2A to 2D,the camera module 20 includes the imaging lens assembly module (itsreference numeral is omitted) and an image sensor module (its referencenumeral is omitted). The imaging lens assembly module has an opticalaxis X, and includes the optical element set (its reference numeral isomitted), a light blocking element assembling surface 220, a lightabsorbing layer 230, the tip-end minimal opening structure 240, the lensbarrel 250, an imaging surface 270, and a filter element 280. Theoptical element set is disposed in the lens barrel 250. The tip-endminimal opening structure 240 is located on an object side of theimaging lens assembly module. The lens barrel 250 is disposed on animage side of the tip-end minimal opening structure 240. The imagingsurface 270 is located on an image side of the lens barrel 250. Theimage sensor module includes an image sensor 261, and the image sensor261 is disposed on the imaging surface 270.

The optical element set includes at least one optical lens element andat least one light blocking sheet, and the optical element set canfurther include a plurality of spacers and a retainer 214. In detail,according to the 2nd embodiment, the optical element set, in order froman object side to an image side, includes a light blocking sheet 212 a,a first optical lens element 211 a, a light blocking sheet 212 b, asecond optical lens element 211 b, a light blocking sheet 212 c, a thirdoptical lens element 211 c, a light blocking sheet 212 d, a fourthoptical lens element 211 d, a spacer 213 a, a fifth optical lens element211 e, a spacer 213 b, a light blocking sheet 212 e, a sixth opticallens element 211 f and the retainer 214. Furthermore, structures,surface shapes and so on of the second optical lens element 211 b, thethird optical lens element 211 c, the fourth optical lens element 211 d,the fifth optical lens element 211 e and the sixth optical lens element211 f can be disposed according to different imaging demand, and thestructures, the surface shapes and so on are not important to thepresent disclosure, and will not disclose details thereof herein.

In FIGS. 2C and 2D, the first optical lens element 211 a, in order fromthe optical axis X to a peripheral region of the first optical lenselement 211 a, includes an optical effective portion 2111 and an outerperipheral portion 2112, wherein the outer peripheral portion 2112surrounds the optical effective portion 2111. The light blocking sheet212 a is disposed on an object side of the outer peripheral portion 2112of the first optical lens element 211 a, and spaced apart from the outerperipheral portion 2112 of the first optical lens element 211 a, thatis, the light blocking sheet 212 a is not contacted with the outerperipheral portion 2112 of the first optical lens element 211 a. Thelight blocking sheet 212 a includes an object-side surface 2121, animage-side surface 2122 and an inner opening surface 2123, wherein theinner opening surface 2123 surrounds a through hole 2124 of the lightblocking sheet 212 a, and the inner opening surface 2123 is connected tothe object-side surface 2121 and the image-side surface 2122. Accordingto the 2nd embodiment, it should be mentioned that each light blockingsheet (including the light blocking sheets 212 b, 212 c, 212 d, 212 e)of the optical element set includes the object-side surface, theimage-side surface and the inner opening surface, and the dispositionthereof is the same as the light blocking sheet 212 a. Also, eachoptical lens element (including the second optical lens element 211 b,the third optical lens element 211 c, the fourth optical lens element211 d, the fifth optical lens element 211 e, the sixth optical lenselement 211 f) includes the optical effective portion and the outerperipheral portion, and the disposition thereof is the same as the firstoptical lens element 211 a. Hence, only the light blocking sheet 212 aand the first optical lens element 211 a are described herein.

In FIG. 2C, the light absorbing layer 230 is disposed on the image-sidesurface 2122 of the light blocking sheet 212 a, wherein the lightabsorbing layer 230 is for fixing the light blocking sheet 212 a on thelight blocking element assembling surface 220, and a void V ismaintained between the light blocking sheet 212 a and the outerperipheral portion 2112 of the first optical lens element 211 a. Indetail, the light absorbing layer 230 is for absorbing the stray lightin the imaging lens assembly module, and the light absorbing layer 230can be for fixing the light blocking sheet 212 a on the light blockingelement assembling surface 220, so that the precisely manufactured lightblocking sheet 212 a does not be compressed and destroyed via the firstoptical lens element 211 a. Therefore, it is favorable for decreasingthe misgiving which the light blocking sheet 212 a is destroyed duringthe assembling process to ensure the better light blocking performance.Hence, the light absorbing layer 230 can further be an aperture stop ofthe imaging lens assembly module to promote the optical quality of theaperture stop.

The tip-end minimal opening structure 240 is circular symmetrical aboutthe optical axis X as a center, and the tip-end minimal openingstructure 240 is disposed on an object side of the light blockingelement assembling surface 220, wherein the tip-end minimal openingstructure 240 includes a first tapered surface 241 and a second taperedsurface 242, the first tapered surface 241 is tapered from an objectside of the imaging lens assembly module to the image side of theimaging lens assembly module, the second tapered surface 242 is taperedfrom the image side of the imaging lens assembly module to the objectside of the imaging lens assembly module, and the first tapered surface241 and the second tapered surface 242 are intersected to form a tip-endminimal opening 243. In detail, the structure of the tip-end minimalopening structure 240 and the light blocking sheet 212 a are cooperatedto each other, the light absorbing layer 230 for disposing the aperturestop can be disposed on a suitable position to promote the steady stateof the function of the aperture stop, and a shape of the first taperedsurface 241 and a shape of the second tapered surface 242 are cooperatedto a shape of the light blocking sheet 212 a. Therefore, a light trapfor absorbing the stray light is formed, and the light absorbing layer230 can be accumulated in the bottom of the light trap to substantiallyreduce the possibility of the reflection of the stray light.

FIG. 2E is a cross-sectional view of the tip-end minimal openingstructure 240 of the imaging lens assembly module according to the 2ndembodiment in FIG. 2A. In FIG. 2E, the light blocking element assemblingsurface 220 is disposed on an object side of the light blocking sheet212 a, the light blocking element assembling surface 220 faces towardthe image side of the imaging lens assembly module. The light blockingelement assembling surface 220 is circular annular, and for the lightblocking sheet 212 a mounted thereon.

In FIGS. 2B and 2C, the light absorbing layer 230 surrounds the throughhole 2124 of the light blocking sheet 212 a to form a concave-curvedring, and the light absorbing layer 230 can be further disposed on theobject-side surface 2121 of the light blocking sheet 212 a. Therefore,it is favorable for increasing the efficiency of absorbing thenon-imaging light. Furthermore, the concave-curved ring is recessed toan outer diameter surface of the light blocking sheet 212 a. Therefore,it is favorable for increasing the stability and the steady state of thelight blocking sheet 212 a, which are not affected by the externalsurroundings.

In detail, the initial condition of the light absorbing layer 230 is aliquid, so the light absorbing layer 230 has extensibility. Therefore,the light absorbing layer 230 extends and permeates to the object-sidesurface 2121 of the light blocking sheet 212 a, and the light absorbinglayer 230 can be accumulated in the bottom of the second tapered surface242 to be a bottom of the light trap. The light absorbing layer 230 canbe made of a quick-drying ink based on a plastic material including ablack epoxy resin, an oil-based coating including a resin, an epoxyresin or an acrylic or a coating of a photocurable colloid mixed with anink. Moreover, the concave-curved ring is formed after an appearance ofthe light absorbing layer 230 solidifying, and the light absorbing layer230 is opaque. Therefore, the reflection condition of the stray lightcan be substantially reduced, and the efficiency of absorbing thenon-imaging light is increased. In FIG. 2B, the light absorbing layer230 is made of a black glue to form a black glue groove, and eachportion of the black glue groove has a radian 8. According to the 2ndembodiment, the radian 8 is 30 degrees. A disposition of the black gluegroove is favorable for increasing a design margin of adjusting a methodof dispensing and the disposition of the black glue groove. Therefore,an original dispensing method is limited by the manufacturing process ora variation of the structure of the lens barrel 20, the black gluegroove can be still modified to facilitate the disposition of the blackglue groove, but is not limited thereto.

The light absorbing layer 230 can be closer to the through hole 2124 ofthe light blocking sheet 212 a than the light blocking elementassembling surface 220 to the through hole 2124 of the light blockingsheet 212 a, or the light absorbing layer 230 can be farther from thethrough hole 2124 of the light blocking sheet 212 a than the lightblocking element assembling surface 220 from the through hole 2124 ofthe light blocking sheet 212 a. When the light absorbing layer 230 iscloser to the through hole 2124 of the light blocking sheet 212 a thanthe light blocking element assembling surface 220 to the through hole2124 of the light blocking sheet 212 a, the efficiency for fixing theaperture stop via the light absorbing layer 230 can be increased. Whenthe light absorbing layer 230 is farther from the through hole 2124 ofthe light blocking sheet 212 a than the light blocking elementassembling surface 220 from the through hole 2124 of the light blockingsheet 212 a, the imaging lens assembly module is observed from thedirection parallel to the optical axis X to the image side of theimaging lens assembly module, the light absorbing layer 230 disposed onthe object-side surface 2121 of the light blocking sheet 212 a isshielded via the tip-end minimal opening structure 240.

In FIG. 2D, there is without additional one or more optical lenselements on an object side of the first optical lens element 211 a, andthe outer peripheral portion 2112 of the first optical lens element 211a can further include an object-side receiving surface 2112 a. Theobject-side receiving surface 2112 a faces toward the object side of thefirst optical lens element 211 a to be circular annular, and theobject-side receiving surface 2112 a is for being assembled with thelens barrel 250 of the imaging lens assembly module. The lens barrel 250can further include a vertical receiving surface 251, and the verticalreceiving surface 251 is contacted with the object-side receivingsurface 2112 a. In detail, the object-side surface 2112 a of the firstoptical lens element 211 a does not need to be connected to the throughhole 2124 of the light blocking sheet 212 a. Therefore, it is favorablefor dispersing the assembling stress of the entire optical element set.

The object-side receiving surface 2112 a does not overlap with the lightblocking element assembling surface 220 in a direction parallel to theoptical axis X. Therefore, the range of applied force is staggered toavoid the light blocking sheet 212 a being affected via the opticalelement set during the assembling process. The light blocking sheet 212a does not overlap with the lens barrel 250 in the direction parallel tothe optical axis X and toward the image side of the imaging lensassembly module. Therefore, it is favorable for reducing the complexityof the assembling process of the aperture stop, and the efficiency ofmanufacture can be promoted. Furthermore, the assembling direction ofthe aperture stop is consistent with the assembling direction of theoptical element set to avoid increasing the cost of machinery, which isfor turning the lens barrel 250 during the assembling process.

In FIGS. 2A and 2D, according to the 2nd embodiment, every definition ofever parameter is the same as the 1st embodiment, and will not bedescribed again herein. Please refer to the Table 2.

TABLE 2 2nd embodiment ψd (mm) 1.44 ψd/ψsa 0.99 ψsa (mm) 1.45(ψsd-ψsa)/2 (mm) 0.20 ψsd (mm) 1.85 (ψsd-ψsa)/ψsa 0.28

3rd Embodiment

FIG. 3A is a schematic view of a camera module 30 according to the 3rdembodiment of the present disclosure. FIG. 3B is a partial exploded viewof an imaging lens assembly module according to the 3rd embodiment inFIG. 3A. FIG. 3C is a partial exploded view of an imaging lens assemblymodule according to the 3rd embodiment in FIG. 3A. FIG. 3D is aschematic view of a partial optical element set, a lens barrel 350 and atip-end minimal opening structure 340 of the imaging lens assemblymodule according to the 3rd embodiment in FIG. 3A. In FIGS. 3A to 3D,the camera module 30 includes the imaging lens assembly module (itsreference numeral is omitted) and an image sensor module (its referencenumeral is omitted). The imaging lens assembly module has an opticalaxis X, and includes the optical element set (its reference numeral isomitted), a light blocking element assembling surface 320, a lightabsorbing layer 330, the tip-end minimal opening structure 340, the lensbarrel 350, an imaging surface 370 and a filter element 380. The opticalelement set is disposed in the lens barrel 350. The tip-end minimalopening structure 340 is located on an object side of the imaging lensassembly module. The lens barrel 350 is disposed on an image side of thetip-end minimal opening structure 340. The imaging surface 370 islocated on an image side of the lens barrel 350. The image sensor moduleincludes an image sensor 361, and the image sensor 361 is disposed onthe imaging surface 370.

The optical element set includes at least one optical lens element andat least one light blocking sheet, and the optical element set canfurther include a plurality of spacers and a retainer 314. In detail,according to the 3rd embodiment, the optical element set, in order froman object side to an image side, includes a light blocking sheet 312 a,a first optical lens element 311 a, a light blocking sheet 312 b, asecond optical lens element 311 b, a light blocking sheet 312 c, a thirdoptical lens element 311 c, a light blocking sheet 312 d, a fourthoptical lens element 311 d, a spacer 313 a, a fifth optical lens element311 e, a spacer 313 b, a light blocking sheet 312 e, a sixth opticallens element 311 f and the retainer 314. Furthermore, structures,surface shapes and so on of the second optical lens element 311 b, thethird optical lens element 311 c, the fourth optical lens element 311 d,the fifth optical lens element 311 e and the sixth optical lens element311 f can be disposed according to different imaging demand, and thestructures, the surface shapes and so on are not important to thepresent disclosure, and will not disclose details thereof herein.

In FIGS. 3C and 3D, the first optical lens element 311 a, in order fromthe optical axis X to a peripheral region of the first optical lenselement 311 a, includes an optical effective portion 3111 and an outerperipheral portion 3112, wherein the outer peripheral portion 3112surrounds the optical effective portion 3111. The light blocking sheet312 a is disposed on an object side of the outer peripheral portion 3112of the first optical lens element 311 a, and spaced apart from the outerperipheral portion 3112 of the first optical lens element 311 a, thatis, the light blocking sheet 312 a is not contacted with the outerperipheral portion 3112 of the first optical lens element 311 a. Thelight blocking sheet 312 a includes an object-side surface 3121, animage-side surface 3122 and an inner opening surface 3123, wherein theinner opening surface 3123 surrounds a through hole 3124 of the lightblocking sheet 312 a, and the inner opening surface 3123 is connected tothe object-side surface 3121 and the image-side surface 3122. Accordingto the 3rd embodiment, it should be mentioned that each light blockingsheet (including the light blocking sheets 312 b, 312 c, 312 d, 312 e)of the optical element set includes the object-side surface, theimage-side surface and the inner opening surface, and the dispositionthereof is the same as the light blocking sheet 312 a. Also, eachoptical lens element (including the second optical lens element 311 b,the third optical lens element 311 c, the fourth optical lens element311 d, the fifth optical lens element 311 e, the sixth optical lenselement 311 f) includes the optical effective portion and the outerperipheral portion, and the disposition thereof is the same as the firstoptical lens element 311 a. Hence, only the light blocking sheet 312 aand the first optical lens element 311 a are described herein.

Furthermore, according to the 3rd embodiment, the through hole 3124 ofthe light blocking sheet 312 a is an aperture stop of the imaging lensassembly module for controlling the amount of incoming light of theimaging lens assembly module, and an opening diameter of the throughhole 3124 of the light blocking sheet 312 a can be an entrance pupildiameter of the imaging lens assembly module. When the through hole 3124of the light blocking sheet 312 a is the aperture stop of the imaginglens assembly module, a position of the aperture stop can beappropriately adjusted by the disposition of the tip-end minimal openingstructure 340.

In FIG. 3C, the light absorbing layer 330 is disposed on the image-sidesurface 3122 of the light blocking sheet 312 a, wherein the lightabsorbing layer 330 is for fixing the light blocking sheet 312 a on thelight blocking element assembling surface 320. In detail, the lightabsorbing layer 330 is disposed between the tip-end minimal openingstructure 340 and the light blocking sheet 312 a, wherein the lightabsorbing layer 330 is for absorbing the stray light in the imaging lensassembly module, and the light absorbing layer 330 can be for fixing thelight blocking sheet 312 a on the light blocking element assemblingsurface 320, so that the precisely manufactured light blocking sheet 312a does not be compressed and destroyed via the first optical lenselement 311 a, and the light absorbing layer 330 after solidifying canbe for stably disposing the light blocking sheet 312 a on the lensbarrel 350, that is, on the light blocking element assembling surface320. Therefore, it is favorable for decreasing the misgiving which thelight blocking sheet 312 a is destroyed during the assembling process toensure the better light blocking performance.

The tip-end minimal opening structure 340 is circular symmetrical aboutthe optical axis X as a center, and the tip-end minimal openingstructure 340 is disposed on an object side of the light blockingelement assembling surface 320, wherein the tip-end minimal openingstructure 340 includes a first tapered surface 341 and a second taperedsurface 342, the first tapered surface 341 is tapered from an objectside of the imaging lens assembly module to the image side of theimaging lens assembly module, the second tapered surface 342 is taperedfrom the image side of the imaging lens assembly module to the objectside of the imaging lens assembly module, and the first tapered surface341 and the second tapered surface 342 are intersected to form a tip-endminimal opening 343. In detail, the structure of the tip-end minimalopening structure 340 and the light blocking sheet 312 a are cooperatedto each other, the light absorbing layer 330 for disposing the aperturestop can be disposed on a suitable position to promote the steady stateof the function of the aperture stop, and a shape of the first taperedsurface 341 and a shape of the second tapered surface 342 are cooperatedto a shape of the light blocking sheet 312 a. Therefore, a light trapfor absorbing the stray light is formed, and the light absorbing layer330 can be accumulated in the bottom of the light trap to substantiallyreduce the possibility of the reflection of the stray light.

FIG. 3E is a cross-sectional view of the tip-end minimal openingstructure 340 of the imaging lens assembly module according to the 3rdembodiment in FIG. 3A. FIG. 3F is another partial exploded view of theimaging lens assembly module according to the 3rd embodiment in FIG. 3A.In FIGS. 3E and 3F, the light blocking element assembling surface 320 isdisposed on an object side of the light blocking sheet 312 a, the lightblocking element assembling surface 320 faces toward the image side ofthe imaging lens assembly module. The light blocking element assemblingsurface 320 is circular annular, and for the light blocking sheet 312 amounted thereon.

The light absorbing layer 330 can be further disposed on the object-sidesurface 3121 of the light blocking sheet 312 a. Furthermore, the initialcondition of the light absorbing layer 330 is a liquid, so that thelight absorbing layer 330 has extensibility. Therefore, the lightabsorbing layer 330 extends and permeates to the object-side surface3121 of the light blocking sheet 312 a, and the light absorbing layer330 can be accumulated in the bottom of the second tapered surface 342to be a bottom of the light trap. Moreover, a concave-curved ring isformed after an appearance of the light absorbing layer 330 solidifying,and the light absorbing layer is opaque. Therefore, the reflectioncondition of the stray light is substantially reduced, and theefficiency of absorbing the non-imaging light is increased.

The light absorbing layer 330 can be closer to the through hole 3124 ofthe light blocking sheet 312 a than the light blocking elementassembling surface 320 to the through hole 3124 of the light blockingsheet 312 a, or the light absorbing layer 330 can be farther from thethrough hole 3124 of the light blocking sheet 312 a than the lightblocking element assembling surface 320 from the through hole 3124 ofthe light blocking sheet 312 a. When the light absorbing layer 330 iscloser to the through hole 3124 of the light blocking sheet 312 a thanthe light blocking element assembling surface 320 to the through hole3124 of the light blocking sheet 312 a, the efficiency for fixing theaperture stop via the light absorbing layer 330 can be increased. Whenthe light absorbing layer 330 is farther from the through hole 3124 ofthe light blocking sheet 312 a than the light blocking elementassembling surface 320 from the through hole 3124 of the light blockingsheet 312 a, the imaging lens assembly module is observed from thedirection parallel to the optical axis X to the image side of theimaging lens assembly module, the light absorbing layer 330 disposed onthe object-side surface 3121 of the light blocking sheet 312 a isshielded via the tip-end minimal opening structure 340. Furthermore, itis favorable for being a glue-storage groove 330 a, and the glue-storagegroove 330 a is for the light absorbing layer 330 with a flow stateaccumulated as uneven thickness via a shielding condition. The tip-endminimal opening structure 340 can be adjusted the surface characteristicthereof owing to be made of a plastic material, and the light absorbinglayer 330 with the flow state is with capillary effect. Cooperating witha shielding configuration of the tip-end minimal opening structure 340,the light absorbing layer 330 with the flow state is accumulated asuneven thickness. The disposition of the glue-storage groove 330 a is toaccumulate a portion of the light absorbing layer 330, most of the lightabsorbing layer 330 can be stored in the glue-storage groove 330 a, andthe excessive light absorbing layer 330 can be avoided so as to a betteradhesion between the light blocking sheet 312 a and the light blockingelement assembling surface 320. An accumulation of the light absorbinglayer 330 is not occupied on the entire light blocking elementassembling surface 320, and a condition of the light blocking sheet 312a exclusively drifted on the light blocking element assembling surface320 can be reduced.

In FIGS. 3C and 3F, the light absorbing layer 330 disposed on theobject-side surface 3121 of the light blocking sheet 312 a surrounds thethrough hole 3124 of the light blocking sheet 312 a, and the lightabsorbing layer 330 is formed of the concave-curved ring, and theconcave-curved ring is recessed to the light blocking element assemblingsurface 320. Therefore, it is favorable for increasing the efficiencyfor fixing the aperture stop via the light absorbing layer 330.

In FIG. 3D, there is without additional one or more optical lenselements on an object side of the first optical lens element 311 a, andthe outer peripheral portion 3112 of the first optical lens element 311a can further include an object-side receiving surface 3112 a. Theobject-side receiving surface 3112 a faces toward the object side of thefirst optical lens element 311 a to be circular annular, and theobject-side receiving surface 3112 a is for being assembled with thelens barrel 350 of the imaging lens assembly module. The lens barrel 350can further include a vertical receiving surface 351, and the verticalreceiving surface 351 is contacted with the object-side receivingsurface 3112 a. In detail, the object-side surface 3112 a of the firstoptical lens element 311 a does not need to be connected to the throughhole 3124 of the light blocking sheet 312 a. Therefore, it is favorablefor dispersing the assembling stress of the entire optical element set,and the excessive stress is avoided to apply on the aperture stop toreduce the possibility of deterioration of the quality of the aperturestop.

The object-side receiving surface 3112 a does not overlap with the lightblocking element assembling surface 320 in a direction parallel to theoptical axis X. Therefore, the range of applied force is staggered toavoid the light blocking sheet 312 a being affected via the opticalelement set during the assembling process. The light blocking sheet 312a does not overlap with the lens barrel 350 in the direction parallel tothe optical axis X and toward the image side of the imaging lensassembly module. Therefore, it is favorable for reducing the complexityof the assembling process of the aperture stop, and the efficiency ofmanufacture can be promoted. Furthermore, the assembling direction ofthe aperture stop is consistent with the assembling direction of theoptical element set to avoid increasing the cost of machinery, which isfor turning the lens barrel 350 during the assembling process.

In FIGS. 3A and 3D, according to the 3rd embodiment, every definition ofever parameter is the same as the 1st embodiment, and will not bedescribed again herein. Please refer to the Table 3.

TABLE 3 3rd embodiment ψd (mm) 1.48 ψd/ψsa 1.02 ψsa (mm) 1.45(ψsd-ψsa)/2 (mm) 0.20 ψsd (mm) 1.85 (ψsd-ψsa)/ψsa 0.28

4th Embodiment

FIG. 4A is a schematic view of a camera module 40 according to the 4thembodiment of the present disclosure. FIG. 4B is a schematic view of apartial optical element set, a lens barrel 450 and a tip-end minimalopening structure 440 of an imaging lens assembly module according tothe 4th embodiment in FIG. 4A. In FIGS. 4A and 4B, the camera module 40includes the imaging lens assembly module (its reference numeral isomitted) and an image sensor module (its reference numeral is omitted).The imaging lens assembly module has an optical axis X, and includes theoptical element set (its reference numeral is omitted), a light blockingelement assembling surface 420, a light absorbing layer 430, the tip-endminimal opening structure 440, the lens barrel 450, an imaging surface470 and a filter element 480. The optical element set is disposed in thelens barrel 450. The tip-end minimal opening structure 440 is located onan object side of the imaging lens assembly module. The lens barrel 450is disposed on an image side of the tip-end minimal opening structure440. The imaging surface 470 is located on an image side of the lensbarrel 450. The image sensor module includes an image sensor 461, andthe image sensor 461 is disposed on the imaging surface 470.

The optical element set includes at least one optical lens element andat least one light blocking sheet, and the optical element set canfurther include a plurality of spacers and a retainer 414. In detail,according to the 4th embodiment, the optical element set, in order froman object side to an image side, includes a light blocking sheet 412 a,a first optical lens element 411 a, a light blocking sheet 412 b, asecond optical lens element 411 b, a light blocking sheet 412 c, a thirdoptical lens element 411 c, a light blocking sheet 412 d, a fourthoptical lens element 411 d, a spacer 413 a, a fifth optical lens element411 e, a spacer 413 b, a light blocking sheet 412 e, a sixth opticallens element 411 f and the retainer 414. Furthermore, structures,surface shapes and so on of the second optical lens element 411 b, thethird optical lens element 411 c, the fourth optical lens element 411 d,the fifth optical lens element 411 e and the sixth optical lens element411 f can be disposed according to different imaging demand, and thestructures, the surface shapes and so on are not important to thepresent disclosure, and will not disclose details thereof herein.

In FIG. 4B, the first optical lens element 411 a, in order from theoptical axis X to a peripheral region of the first optical lens element411 a, includes an optical effective portion 4111 and an outerperipheral portion 4112, wherein the outer peripheral portion 4112surrounds the optical effective portion 4111. The light blocking sheet412 a is disposed on one side of an object side and an image side of theouter peripheral portion 4112 of the first optical lens element 411 awhich is without additional one or more optical lens elements disposedthereon, and spaced apart from the outer peripheral portion 4112 of thefirst optical lens element 411 a, that is, the light blocking sheet 412a is not contacted with the outer peripheral portion 4112 of the firstoptical lens element 411 a. The light blocking sheet 412 a includes anobject-side surface 4121, an image-side surface 4122 and an inneropening surface 4123, wherein the inner opening surface 4123 surrounds athrough hole 4124 of the light blocking sheet 412 a, and the inneropening surface 4123 is connected to the object-side surface 4121 andthe image-side surface 4122. According to the 4th embodiment, it shouldbe mentioned that each light blocking sheet (including the lightblocking sheets 412 b, 412 c, 412 d, 412 e) of the optical element setincludes the object-side surface, the image-side surface and the inneropening surface, and the disposition thereof is the same as the lightblocking sheet 412 a. Also, each optical lens element (including thesecond optical lens element 411 b, the third optical lens element 411 c,the fourth optical lens element 411 d, the fifth optical lens element411 e, the sixth optical lens element 411 f) includes the opticaleffective portion and the outer peripheral portion, and the dispositionthereof is the same as the first optical lens element 411 a. Hence, onlythe light blocking sheet 412 a and the first optical lens element 411 aare described herein.

In FIG. 4A, the light absorbing layer 430 is disposed on one side of theobject side and the image side of the light blocking sheet 412 a whichhas the first optical lens element 411 a and for fixing the lightblocking sheet 412 a on the light blocking element assembling surface420. In detail, the light absorbing layer 430 is for absorbing the straylight in the imaging lens assembly module, and the light absorbing layer430 can be for fixing the light blocking sheet 412 a on the lightblocking element assembling surface 420, so that the preciselymanufactured light blocking sheet 412 a does not be compressed anddestroyed via the first optical lens element 411 a. Therefore, it isfavorable for decreasing the misgiving which the light blocking sheet412 a is destroyed during the assembling process to ensure the betterlight blocking performance. Hence, the light absorbing layer 430 canfurther be an aperture stop of the imaging lens assembly module topromote the optical quality of the aperture stop.

The tip-end minimal opening structure 440 is circular symmetrical aboutthe optical axis X as a center, and the tip-end minimal openingstructure 440 is disposed on an object side of the light blockingelement assembling surface 420, and disposed on one side of the objectside and the image side of the first optical lens element 411 a which iswithout additional one or more optical lens elements disposed thereon,wherein the tip-end minimal opening structure 440 includes a firsttapered surface 441 and a second tapered surface 442, the first taperedsurface 441 is tapered from an object side of the imaging lens assemblymodule to the image side of the imaging lens assembly module, the secondtapered surface 442 is tapered from the image side of the imaging lensassembly module to the object side of the imaging lens assembly module,and the first tapered surface 441 and the second tapered surface 442 areintersected to form a tip-end minimal opening 443. In detail, thestructure of the tip-end minimal opening structure 440 and the lightblocking sheet 412 a are cooperated to each other, the light absorbinglayer 430 for disposing the aperture stop can be disposed on a suitableposition to promote the steady state of the function of the aperturestop, and a shape of the first tapered surface 441 and a shape of thesecond tapered surface 442 are cooperated to a shape of the lightblocking sheet 412 a. Therefore, a light trap for absorbing the straylight is formed, and the light absorbing layer 430 can be accumulated inthe bottom of the light trap to substantially reduce the possibility ofthe reflection of the stray light.

In FIG. 4A, the light blocking element assembling surface 420 isdisposed on one side of the object side and the image side of the lightblocking sheet 412 a which is without additional one or more opticallens elements disposed thereon, and the light blocking elementassembling surface 420 faces toward the first optical lens element 411 aand is circular annular for the light blocking sheet 412 a mountedthereon.

The light absorbing layer 430 is disposed on the object-side surface4121 of the light blocking sheet 412 a surrounds the through hole 4124of the light blocking sheet 412 a, and the light absorbing layer 430 isformed of a concave-curved ring. Furthermore, the light absorbing layer430 can be further disposed on the object-side surface 4121 of the lightblocking sheet 412 a. Therefore, it is favorable for increasing theefficiency of absorbing the non-imaging light. Moreover, theconcave-curved ring is recessed to an outer diameter surface of thelight blocking sheet 412 a. Therefore, it is favorable for increasingthe stability and the steady state of the light blocking sheet 412 a,which are not affected by the external surroundings.

In detail, the initial condition of the light absorbing layer 430 is aliquid, so the light absorbing layer 430 has extensibility. Therefore,the light absorbing layer 430 extends and permeates to the object-sidesurface 4121 of the light blocking sheet 412 a, and the light absorbinglayer 430 can be accumulated in the bottom of the second tapered surface442 to be a bottom of the light trap. The light absorbing layer 430 canbe made of a quick-drying ink based on a plastic material including ablack epoxy resin, an oil-based coating including a resin, an epoxyresin or an acrylic or a coating of a photocurable colloid mixed with anink. Moreover, the concave-curved ring is formed after an appearance ofthe light absorbing layer 430 solidifying, and the light absorbing layer430 is opaque. Therefore, the reflection condition of the stray lightcan be substantially reduced, and the efficiency of absorbing thenon-imaging light is increased.

The light absorbing layer 430 can be closer to the through hole 4124 ofthe light blocking sheet 412 a than the light blocking elementassembling surface 420 to the through hole 4124 of the light blockingsheet 412 a, or the light absorbing layer 430 can be farther from thethrough hole 4124 of the light blocking sheet 412 a than the lightblocking element assembling surface 420 from the through hole 4124 ofthe light blocking sheet 412 a. When the light absorbing layer 430 iscloser to the through hole 4124 of the light blocking sheet 412 a thanthe light blocking element assembling surface 420 to the through hole4124 of the light blocking sheet 412 a, the efficiency for fixing theaperture stop via the light absorbing layer 430 can be increased. Whenthe light absorbing layer 430 is farther from the through hole 4124 ofthe light blocking sheet 412 a than the light blocking elementassembling surface 420 from the through hole 4124 of the light blockingsheet 412 a, the imaging lens assembly module is observed from thedirection parallel to the optical axis X to the image side of theimaging lens assembly module, the light absorbing layer 430 disposed onthe object-side surface 4121 of the light blocking sheet 412 a isshielded via the tip-end minimal opening structure 440. Furthermore, itis favorable for being a glue-storage groove 430 a, and the glue-storagegroove 430 a is for the light absorbing layer 430 with a flow stateaccumulated as uneven thickness via a shielding condition. The tip-endminimal opening structure 440 can be adjusted the surface characteristicthereof owing to be made of a plastic material, and the light absorbinglayer 430 with the flow state is with capillary effect. Cooperating witha shielding configuration of the tip-end minimal opening structure 440,the light absorbing layer 430 with the flow state is accumulated asuneven thickness. The disposition of the glue-storage groove 430 a is toaccumulate a portion of the light absorbing layer 430, most of the lightabsorbing layer 430 can be stored in the glue-storage groove 430 a, andthe excessive light absorbing layer 430 can be avoided so as to a betteradhesion between the light blocking sheet 412 a and the light blockingelement assembling surface 420. An accumulation of the light absorbinglayer 430 is not occupied on the entire light blocking elementassembling surface 420, and a condition of the light blocking sheet 412a exclusively drifted on the light blocking element assembling surface420 can be reduced.

In FIG. 4B, one side of the object side and the image side of the firstoptical lens element 411 a is without additional one or more opticallens elements disposed thereon, and the outer peripheral portion 4112 ofthe first optical lens element 411 a can further include an object-sidereceiving surface 4112 a. The object-side receiving surface 4112 a facestoward the object side of the first optical lens element 411 a to becircular annular, and the object-side receiving surface 4112 a is forbeing assembled with the lens barrel 450 of the imaging lens assemblymodule. The lens barrel 450 can further include a vertical receivingsurface 451, and the vertical receiving surface 451 is contacted withthe object-side receiving surface 4112 a. In detail, the object-sidesurface 4112 a of the first optical lens element 411 a does not need tobe connected to the through hole 4124 of the light blocking sheet 412 a.Therefore, it is favorable for dispersing the assembling stress of theentire optical element set.

The object-side receiving surface 4112 a does not overlap with the lightblocking element assembling surface 420 in a direction parallel to theoptical axis X. Therefore, the range of applied force is staggered toavoid the light blocking sheet 412 a being affected via the opticalelement set during the assembling process. The light blocking sheet 412a does not overlap with the lens barrel 450 in the direction parallel tothe optical axis X and toward the image side of the imaging lensassembly module. Therefore, it is favorable for reducing the complexityof the assembling process of the aperture stop, and the efficiency ofmanufacture can be promoted. Furthermore, the assembling direction ofthe aperture stop is consistent with the assembling direction of theoptical element set to avoid increasing the cost of machinery, which isfor turning the lens barrel 450 during the assembling process.

In FIGS. 4A and 4B, according to the 4th embodiment, every definition ofever parameter is the same as the 1st embodiment, and will not bedescribed again herein. Please refer to the Table 4.

TABLE 4 4th embodiment ψd (mm) 1.48 ψd/ψsa 1.02 ψsa (mm) 1.45(ψsd-ψsa)/2 (mm) 0.20 ψsd (mm) 1.85 (ψsd-ψsa)/ψsa 0.28

5th Embodiment

FIG. 5A is a schematic view of an electronic device 50 according to the5th embodiment of the present disclosure. FIG. 5B is another schematicview of the electronic device 50 according to the 5th embodiment of thepresent disclosure. In FIGS. 5A and 5B, the electronic device 50 of the5th embodiment is a smart phone, wherein the electronic device 50includes the camera module 51 according to the present disclosure,wherein the camera module 51 can be one of the camera modules accordingto the aforementioned 1st embodiment to the 4th embodiment, and thecamera module 51 includes an imaging lens assembly module 51 a and animage sensor module 51 b, but is not limited thereto. Therefore, it isfavorable for satisfying a mass production and an appearance demand ofthe imaging lens assembly module disposed on the camera module with theelectronic device market nowadays.

Furthermore, the user activates the capturing mode via a user interface52 of the electronic device 50, wherein the user interface 52 of the 5thembodiment can be a touch screen 52 a, a button 52 b and etc. At thismoment, the imaging light is converged on the image sensor module 51 bvia the imaging lens assembly module 51 a, and the electronic signalassociated with image is output to an image signal processor (ISP) 53.

FIG. 5C is a block diagram of the electronic device 50 of the 5thembodiment, and in particular, the block diagram is related to thecamera of the electronic device 50. In FIGS. 5A to 5C, the electronicdevice 50 can further include an optical anti-shake mechanism 54 basedon the camera specification of the electronic device 50. Moreover, theelectronic device 50 can further include at least one auxiliary opticalcomponent 57 and at least one sensing component 55. The auxiliaryoptical component 57 can be a flash module 56 for compensating for thecolor temperature, an infrared distance measurement component, a laserfocus module and etc. The sensing component 55 can have functions forsensing physical momentum and kinetic energy, and thereby can be anaccelerator, a gyroscope, and a Hall effect element, to sense shaking orjitters applied by hands of the user or external environments.Accordingly, the functions of an autofocus assembly and the opticalanti-shake mechanism 54 of the imaging lens assembly module 51 a can beaided and enhanced to achieve the superior image quality. Furthermore,the electronic device 50 according to the present disclosure can have acapturing function with multiple modes, such as taking optimizedselfies, high dynamic range (HDR) under a low light condition, 4Kresolution recording, etc. Additionally, the user can visually see thecaptured image of the camera through the touch screen 52 a and manuallyoperate the view finding range on the touch screen 52 a to achieve theauto focus function of what you see is what you get.

Furthermore, in FIG. 5B, the imaging lens assembly module 51 a, theimage sensor module 51 b, the optical anti-shake mechanism 54, thesensing component 55 and the auxiliary optical component 57 can bedisposed on a flexible printed circuit board (FPC) 58 a and electricallyconnected with the associated components, such as the imaging signalprocessor 53, via a connector 58 b to perform a capturing process. Sincethe current electronic devices, such as smart phones, have a tendency ofbeing compact, the way of firstly disposing the imaging lens assemblymodule and related components on the flexible printed circuit board andsecondly integrating the circuit thereof into the main board of theelectronic device via the connector can satisfy the requirements of themechanical design and the circuit layout of the limited space inside theelectronic device, and obtain more margins. The autofocus function ofthe imaging lens assembly module can also be controlled more flexiblyvia the touch screen of the electronic device. According to the 5thembodiment, the electronic device 50 includes a plurality of sensingcomponents 55 and a plurality of auxiliary optical components 57. Thesensing components 55 and the auxiliary optical components 57 aredisposed on the flexible printed circuit board 58 a and at least oneother flexible printed circuit board (its reference numeral is omitted)and electrically connected with the associated components, such as theimage signal processor 53, via corresponding connectors to perform thecapturing process. In other embodiments (not shown herein), the sensingcomponents and the auxiliary optical components can also be disposed onthe main board of the electronic device or carrier boards of other typesaccording to requirements of the mechanical design and the circuitlayout.

In addition, the electronic device 50 can further include but not belimited to a display, a control unit, a storage unit, a random accessmemory (RAM), a read-only memory (ROM), or a combination thereof.

6th Embodiment

FIG. 6 is an electronic device 60 according to the 6th embodiment of thepresent disclosure. The electronic device 60 of the 6th embodiment is atablet personal computer. The electronic device 60 includes a cameramodule 61 according to the present disclosure, and the camera module 61includes an imaging lens assembly module (not shown) and an image sensormodule (not shown). The imaging lens assembly module is disposed on theimage sensor module, and the image sensor module includes an imagesensor (not shown).

7th Embodiment

FIG. 7 is an electronic device 70 according to the 7th embodiment of thepresent disclosure. The electronic device 70 of the 7th embodiment is awearable device. The electronic device 70 includes a camera module 71according to the present disclosure, and the camera module 71 includesan imaging lens assembly module (not shown) and an image sensor module(not shown). The imaging lens assembly module is disposed on the imagesensor module, and the image sensor module includes an image sensor (notshown).

The foregoing description, for purpose of explanation, has beendescribed with reference to specific embodiments. It is to be noted thatTables show different data of the different embodiments; however, thedata of the different embodiments are obtained from experiments. Theembodiments were chosen and described in order to best explain theprinciples of the disclosure and its practical applications, to therebyenable others skilled in the art to best utilize the disclosure andvarious embodiments with various modifications as are suited to theparticular use contemplated. The embodiments depicted above and theappended drawings are exemplary and are not intended to be exhaustive orto limit the scope of the present disclosure to the precise formsdisclosed. Many modifications and variations are possible in view of theabove teachings.

What is claimed is:
 1. An imaging lens assembly module, which has anoptical axis, comprising: an optical element set, comprising: at leastone optical lens element, which is a plastic lens element, and an objectside of the at least one optical lens element without additional one ormore optical lens elements disposed thereon, the at least one opticallens element, in order from the optical axis to a peripheral regionthereof, comprising: an optical effective portion; and an outerperipheral portion surrounding the optical effective portion; and atleast one light blocking sheet disposed on an object side of the outerperipheral portion of the at least one optical lens element, and spacedapart from the outer peripheral portion of the at least one optical lenselement, the at least one light blocking sheet comprising: anobject-side surface; an image-side surface; and an inner opening surfacesurrounding a through hole of the at least one light blocking sheet, andthe inner opening surface connected to the object-side surface and theimage-side surface; a light blocking element assembling surface disposedon an object side of the at least one light blocking sheet, and thelight blocking element assembling surface facing toward an image side ofthe imaging lens assembly module and being circular annular and for theat least one light blocking sheet mounted thereon; a light absorbinglayer disposed on the image-side surface of the at least one lightblocking sheet and for fixing the at least one light blocking sheet onthe light blocking element assembling surface; and a tip-end minimalopening structure circular symmetrical about the optical axis as acenter, and the tip-end minimal opening structure disposed on an objectside of the light blocking element assembling surface, wherein thetip-end minimal opening structure comprises a first tapered surface anda second tapered surface, the first tapered surface is tapered from anobject side of the imaging lens assembly module to the image side of theimaging lens assembly module, the second tapered surface is tapered fromthe image side of the imaging lens assembly module to the object side ofthe imaging lens assembly module, and the first tapered surface and thesecond tapered surface are intersected to form a tip-end minimalopening; wherein a void is maintained between the at least one lightblocking sheet and the outer peripheral portion of the at least oneoptical lens element.
 2. The imaging lens assembly module of claim 1,wherein a diameter of the tip-end minimal opening is ψd, a diameter ofthe through hole of the at least one light blocking sheet is ψsa, andthe following condition is satisfied:0.85<ψd/ψsa<1.15.
 3. The imaging lens assembly module of claim 1,wherein the light absorbing layer is further disposed on the object-sidesurface of the at least one light blocking sheet.
 4. The imaging lensassembly module of claim 3, wherein the light absorbing layer is closerto the through hole of the at least one light blocking sheet than thelight blocking element assembling surface to the through hole of the atleast one light blocking sheet.
 5. The imaging lens assembly module ofclaim 3, wherein the light absorbing layer is farther from the throughhole of the at least one light blocking sheet than the light blockingelement assembling surface from the through hole of the at least onelight blocking sheet.
 6. The imaging lens assembly module of claim 1,wherein the outer peripheral portion of the at least one optical lenselement further comprises an object-side receiving surface facing towardthe object side of the at least one optical lens element to be circularannular, the object-side receiving surface is for being assembled with alens barrel of the imaging lens assembly module, and the lens barrelcomprises a vertical receiving surface contacted with the object-sidereceiving surface.
 7. The imaging lens assembly module of claim 6,wherein the object-side receiving surface does not overlap with thelight blocking element assembling surface in a direction parallel to theoptical axis.
 8. The imaging lens assembly module of claim 6, whereinthe at least one light blocking sheet does not overlap with the lensbarrel in a direction parallel to the optical axis and toward the imageside of the imaging lens assembly module.
 9. The imaging lens assemblymodule of claim 1, wherein a diameter of the through hole of the atleast one light blocking sheet is ψsa, an outer diameter of the at leastone light blocking sheet is ψsd, and the following condition issatisfied:0.08 mm<(ψsd−ψsa)/2<0.5 mm.
 10. The imaging lens assembly module ofclaim 1, wherein a diameter of the through hole of the at least onelight blocking sheet is ψsa, an outer diameter of the at least one lightblocking sheet is ψsd, and the following condition is satisfied:0.1<(ψsd−ψsa)/ψsa<0.4.
 11. A camera module, comprising: the imaging lensassembly module of claim 1; and an image sensor module, wherein theimaging lens assembly module is disposed on the image sensor module, andthe image sensor module comprises an image sensor.
 12. An electronicdevice, comprising: the camera module of claim
 11. 13. An imaging lensassembly module, which has an optical axis, comprising: an opticalelement set, comprising: at least one optical lens element, which is aplastic lens element, and an object side of the at least one opticallens element without additional one or more optical lens elementsdisposed thereon, the at least one optical lens element, in order fromthe optical axis to a peripheral region thereof, comprising: an opticaleffective portion; and an outer peripheral portion surrounding theoptical effective portion; and at least one light blocking sheetdisposed on an object side of the outer peripheral portion of the atleast one optical lens element, and spaced apart from the outerperipheral portion of the at least one optical lens element, the atleast one light blocking sheet comprising: an object-side surface; animage-side surface; and an inner opening surface surrounding a throughhole of the at least one light blocking sheet, and the inner openingsurface connected to the object-side surface and the image-side surface;a light blocking element assembling surface disposed on an object sideof the at least one light blocking sheet, and the light blocking elementassembling surface facing toward an image side of the imaging lensassembly module and being circular annular for the at least one lightblocking sheet mounted thereon; and a light absorbing layer disposed onthe image-side surface of the at least one light blocking sheet and forfixing the at least one light blocking sheet on the light blockingelement assembling surface; wherein the light absorbing layer surroundsthe through hole of the at least one light blocking sheet to form aconcave-curved ring.
 14. The imaging lens assembly module of claim 13,wherein the concave-curved ring is recessed to an outer diameter surfaceof the at least one light blocking sheet.
 15. The imaging lens assemblymodule of claim 13, wherein a diameter of the through hole of the atleast one light blocking sheet is ψsa, an outer diameter of the at leastone light blocking sheet is ψsd, and the following condition issatisfied:0.1<(ψsd−ψsa)/ψsa<0.4.
 16. The imaging lens assembly module of claim 13,wherein the light absorbing layer is further disposed on the object-sidesurface of the at least one light blocking sheet.
 17. The imaging lensassembly module of claim 16, wherein the light absorbing layer isfarther from the through hole of the at least one light blocking sheetthan the light blocking element assembling surface from the through holeof the at least one light blocking sheet.
 18. The imaging lens assemblymodule of claim 17, wherein the light absorbing layer disposed on theobject-side surface of the at least one light blocking sheet surroundsthe through hole of the at least one light blocking sheet, theconcave-curved ring is formed, and the light absorbing layer is recessedto the light blocking element assembling surface.
 19. An imaging lensassembly module, which has an optical axis, comprising: an opticalelement set, comprising: at least one optical lens element, which is aplastic lens element, and one side of an object side and an image sideof the at least one optical lens element without additional one or moreoptical lens elements disposed thereon, the at least one optical lenselement, in order from the optical axis to a peripheral region thereof,comprising: an optical effective portion; and an outer peripheralportion surrounding the optical effective portion; and at least onelight blocking sheet disposed on one side of an object side and an imageside of the outer peripheral portion of the at least one optical lenselement which is without additional one or more optical lens elementsdisposed thereon, and spaced apart from the outer peripheral portion ofthe at least one optical lens element, the at least one light blockingsheet comprising: an object-side surface; an image-side surface; and aninner opening surface surrounding a through hole of the at least onelight blocking sheet, and the inner opening surface connected to theobject-side surface and the image-side surface; a light blocking elementassembling surface disposed on one side of an object side and an imageside of the at least one light blocking sheet which is withoutadditional one or more optical lens elements disposed thereon, and thelight blocking element assembling surface facing toward the at least oneoptical lens element and being circular annular for the at least onelight blocking sheet mounted thereon; and a light absorbing layerdisposed on one side of the object side and the image side of the atleast one light blocking sheet which has the at least one optical lenselement and for fixing the at least one light blocking sheet on thelight blocking element assembling surface; wherein the light absorbinglayer surrounds the through hole of the at least one light blockingsheet to form a concave-curved ring; wherein a diameter of the throughhole of the at least one light blocking sheet is ψsa, an outer diameterof the at least one light blocking sheet is ψsd, and the followingcondition is satisfied:0.08 mm<(ψsd−ψsa)/2<0.5 mm.
 20. The imaging lens assembly module ofclaim 19, wherein the diameter of the through hole of the at least onelight blocking sheet is wsa, the outer diameter of the at least onelight blocking sheet is ψsd, and the following condition is satisfied:0.1<(ψsd−ψsa)/ψsa<0.4.
 21. The imaging lens assembly module of claim 19,further comprising: a tip-end minimal opening structure circularsymmetrical about the optical axis as a center, and the tip-end minimalopening structure disposed on one side of the object side and the imageside of the at least one optical lens element which is withoutadditional one or more optical lens element disposed thereon, whereinthe tip-end minimal opening structure comprises a first tapered surfaceand a second tapered surface, the first tapered surface is tapered froma direction close to the at least one optical lens element, the secondtapered surface is tapered from a direction far away from the at leastone optical lens element, and the first tapered surface and the secondtapered surface are intersected to form a tip-end minimal opening. 22.The imaging lens assembly module of claim 21, wherein a diameter of thetip-end minimal opening is ψd, the diameter of the through hole of theat least one light blocking sheet is ψsa, and the following condition issatisfied:0.85<ψd/ψsa<1.15.